Partake

google

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mid 16th century: back-formation from earlier partaker ‘person who takes a part’.

wiktionary

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Back-formation from Middle English part-takinge, part-takynge(“a sharing; partaking”), a calque of Latin particeps(“participating”); equivalent to part +‎ take. Compare take part.

etymonline

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partake (v.)

1560s, "to take or have a part, portion, or share in common with others," back-formation from Middle English part-taking "a sharing" (late 14c.), or part-taker "a sharer" (c. 1400), both translations of Latin particeps "participant" (n.), also "sharing, partaking" (see participation). Meaning "to share in some degree the nature, character, or peculiarities of" is from 1610s. Related: Partook; partaking.